backupninja/handlers/rdiff
2005-07-10 10:05:49 +00:00

151 lines
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#
# rdiff-backup handler script for backupninja
# requires rdiff-backup
#
getconf options
getconf testconnect yes
getconf nicelevel 0
setsection source
getconf type; sourcetype=$type
getconf label
getconf keep 60
getconf include
getconf vsinclude
getconf exclude
### DESTINATION ###
setsection dest
getconf directory; destdir=$directory
# strip trailing /
destdir=${destdir%/}
getconf type; desttype=$type
getconf user; destuser=$user
getconf host; desthost=$host
# See if vservers are configured
if [ "$vservers" = "yes" ]
then
if [ ! -d $VROOTDIR ]
then
fatal "vservers enabled, but $VROOTDIR does not exist!"
else
info "vserver method enabled"
usevserver=1
fi
fi
[ "$destdir" != "" ] || fatal "Destination directory not set"
if [ "$desttype" == "remote" ]; then
# see if we can login
if [ "$testconnect" == "yes" ]; then
hostalive=0
debug "ssh -o PreferredAuthentications=publickey $desthost -l $destuser 'echo -n 1'"
ret=`ssh -o PreferredAuthentications=publickey $desthost -l $destuser 'echo -n host is alive'`
if echo $ret | grep "host is alive"; then
debug "Connected to $desthost as $destuser successfully"
else
fatal "Can't connect to $desthost as $destuser."
fi
fi
# see that rdiff-backup has the same version as here
debug "ssh -o PreferredAuthentications=publickey $desthost -l $destuser '$RDIFFBACKUP -V'\""
remoteversion=`ssh -o PreferredAuthentications=publickey $desthost -l $destuser "$RDIFFBACKUP -V | grep rdiff-backup"`
localversion=`$RDIFFBACKUP -V`
if [ "$remoteversion" != "$localversion" ]; then
fatal "rdiff-backup does not have the same version on this computer and the backup server."
fi
execstr_serverpart="$destuser@$desthost::$destdir/$label"
else
execstr_serverpart="$destdir/$label"
fi
### SOURCE ###
[ "$label" != "" ] || fatal "Source missing label"
[ "$sourcetype" == "local" ] || fatal "Only local source type supported"
[ "$include" != "" -o "$vsinclude" != "" ] || fatal "No source includes specified"
#TODO should I test for vsinclude if usevservers=1?
execstr_clientpart="/"
## REMOVE OLD BACKUPS
if [ "`echo $keep | tr -d 0-9`" == "" ]; then
keep="${keep}D"
fi
removestr="rdiff-backup --force --remove-older-than $keep "
if [ "$desttype" == "remote" ]; then
removestr="${removestr}${destuser}@${desthost}::"
fi
removestr="${removestr}${destdir}/${label}";
debug "$removestr"
if [ ! $test ]; then
output=`$removestr 2>&1`
code=$?
if [ "$code" == "0" ]; then
debug $output
info "Removing backups older than $keep days succeeded."
else
warning $output
warning "Failed removing backups older than $keep."
fi
fi
## EXECUTE ##
execstr="$RDIFFBACKUP $options --print-statistics "
# TODO: order the includes and excludes
# excludes
for i in $exclude; do
str="${i//__star__/*}"
execstr="${execstr}--exclude '$str' "
done
# includes
for i in $include; do
str="${i//__star__/*}"
execstr="${execstr}--include '$str' "
done
# vsinclude
if [ $usevserver ]
then
for vserver in `ls $VROOTDIR|grep -v lost+found`
do
for vi in $vsinclude
do
str="${vi//__star__/*}"
execstr="${execstr}--include '$VROOTDIR/$vserver$str' "
done
done
fi
# exclude everything else
execstr="${execstr}--exclude '/*' "
# include client-part and server-part
execstr="${execstr}$execstr_clientpart $execstr_serverpart"
debug "$execstr"
if [ ! $test ]; then
output=`nice -n $nicelevel su -c "$execstr" 2>&1`
code=$?
if [ "$code" == "0" ]; then
debug $output
info "Successfully finished backing up source '$label'"
else
warning $output
warning "Failed backup up source '$label'"
fi
fi
return 0